US4719278A - Process for the preparation of thixotropic binders, the binder obtainable by this process and their use for the preparation of coating and sealing compounds - Google Patents

Process for the preparation of thixotropic binders, the binder obtainable by this process and their use for the preparation of coating and sealing compounds Download PDF

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Publication number
US4719278A
US4719278A US07/026,928 US2692887A US4719278A US 4719278 A US4719278 A US 4719278A US 2692887 A US2692887 A US 2692887A US 4719278 A US4719278 A US 4719278A
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US
United States
Prior art keywords
component
prepolymer
weight
semi
prepolymers
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US07/026,928
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English (en)
Inventor
Wolfgang Wellner
Hermann Gruber
Alois Fehlbier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CLASSIC COVERS Inc
Bayer AG
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Bayer AG
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Filing date
Publication date
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Assigned to BAYER AKTIENGESELLSCHAFT, A CORP. OF GERMANY reassignment BAYER AKTIENGESELLSCHAFT, A CORP. OF GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FEHLBIER, ALOIS, GRUBER, HERMANN, WELLNER, WOLFGANG
Application granted granted Critical
Publication of US4719278A publication Critical patent/US4719278A/en
Assigned to CLASSIC COVERS INC. reassignment CLASSIC COVERS INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HUDSON, KENNETH H.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Definitions

  • the present invention is directed to a process for the preparation of air drying binders with thixotropic properties containing free isocyanate groups, characterized in that either
  • aromatic diamines which have at least one alkyl substituent in the ortho position to each amino group
  • Any aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic polyisocyanates of the kind described, for example, by W. Siefken in Justus Liebigs Annalen der Chemie, 562, pages 75-136 are suitable for preparing the isocyanate prepolymers or semi-prepolymers which are present as mixtures with isocyanate prepolymers or semi-prepolymers (a1) in component (a2) which is optionally used in the process according to the invention.
  • These polyisocyanates are represented by the formula
  • the starting component (b) used in the process according to the invention includes any aromatic diamines having at least one alkyl substituent in the ortho position to each amino group, in particular diamines having at least one alkyl substituent in the ortho position to the first amino group and 2 alkyl substituents each with 1 to 4, preferably 1 to 3 carbon atoms in the ortho position to the second amino group.
  • aromatic diamines having at least one alkyl substituent in the ortho position to each amino group
  • diamines having at least one alkyl substituent in the ortho position to the first amino group and 2 alkyl substituents each with 1 to 4, preferably 1 to 3 carbon atoms in the ortho position to the second amino group.
  • Those which have an ethyl, n-propyl and/or isopropyl substituent in at least one ortho position to each amino group and optionally methyl substituents in other ortho positions to the amino groups are particularly preferred.
  • the process according to the invention is preferably carried out at room temperature, with or without suitable inert, preferably apolar or only slightly polar lacquer solvents such as petroleum hydrocarbons, xylene, toluene or mixtures of such solvents.
  • suitable inert preferably apolar or only slightly polar lacquer solvents such as petroleum hydrocarbons, xylene, toluene or mixtures of such solvents.
  • the reaction is preferably carried out without such solvents.
  • Suitable catalysts for accelerating the isocyanate addition reaction may in principle be used. Suitable catalysts for this purpose include tin compounds such as dibutyl tin dilaurate or tin(II)octoate. Other catalysts are described in "Kunststoff Handbuch", Volume VII, published by Becker and Braun, Carl Hanser Verlag, Kunststoff 1983, on pages 92-98. The catalysts are used, if at all, in a quantity of about 0.001 to 10% by weight, preferably about 0.002 to 0.1% by weight, based on the total quantity of reactants.
  • the thixotropic effect according to the invention is also obtained in this case.
  • the prepolymers or semi-prepolymers are of the type set forth in component (a1), such as prepolymers or semi-prepolymers based on 2,4-diisocyanatotoluene, this effect is not observed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
  • Sealing Material Composition (AREA)
US07/026,928 1986-03-29 1987-03-17 Process for the preparation of thixotropic binders, the binder obtainable by this process and their use for the preparation of coating and sealing compounds Expired - Lifetime US4719278A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863610729 DE3610729A1 (de) 1986-03-29 1986-03-29 Verfahren zur herstellung von thixotropen bindemitteln, die nach diesem verfahren erhaeltlichen bindemittel und ihre verwendung zur herstellung von beschichtungs- und abdichtungsmitteln
DE3610729 1986-03-29

Publications (1)

Publication Number Publication Date
US4719278A true US4719278A (en) 1988-01-12

Family

ID=6297581

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/026,928 Expired - Lifetime US4719278A (en) 1986-03-29 1987-03-17 Process for the preparation of thixotropic binders, the binder obtainable by this process and their use for the preparation of coating and sealing compounds

Country Status (6)

Country Link
US (1) US4719278A (de)
EP (1) EP0239870B1 (de)
JP (1) JPS62241975A (de)
AT (1) ATE44963T1 (de)
CA (1) CA1269476C (de)
DE (2) DE3610729A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933416A (en) * 1987-03-11 1990-06-12 Ici Americas Inc Polyisocyanate compositions
US5128433A (en) * 1991-06-04 1992-07-07 Polytek Development Corp. Thixotropic polymer compositions and process for use thereof
US5585061A (en) * 1991-04-25 1996-12-17 Sumitomo Chemical Co., Ltd. Method for producing a multilayer molded article
WO2000039185A1 (en) * 1998-12-23 2000-07-06 Bayer Corporation Thixotropic wood binder compositions
US20050222291A1 (en) * 2004-02-04 2005-10-06 Hans-Georg Pirkl Process for the production of very pure 2,4'-methylenediphenyl diisocyanate
US20080125529A1 (en) * 2005-06-07 2008-05-29 Construction Research & Technology Gmbh Silane-Modified Urea Derivatives, Method for the Production Thereof, and Use Thereof as Auxiliary Rheological Agents
WO2009086064A1 (en) * 2007-12-21 2009-07-09 Henkel Ag & Co. Kgaa Method for preparing a moisture curable hot melt adhesive

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827595A1 (de) * 1988-08-13 1990-02-22 Bayer Ag Verfahren zur herstellung von urethangruppen ausweisenden polyharnstoff-elastomeren
DE4039194A1 (de) * 1990-12-08 1992-06-11 Bayer Ag Verfahren zur herstellung von polyurethanbeschichtungen
DE4228178A1 (de) * 1992-08-25 1994-03-03 Bergwerksverband Gmbh Verfahren zur Anwendung eines Kunstharzsystems
US5895806A (en) * 1996-05-06 1999-04-20 Uniroyal Chemical Company, Inc. Polyurethane composition useful for coating cylindrical parts
DE19729982A1 (de) * 1997-07-12 1999-01-14 Sika Chemie Gmbh Thixotrope Zwei-Komponenten-Polyurethansysteme
DE10229519A1 (de) * 2001-07-10 2003-01-30 Henkel Kgaa Reaktive Polyurethane mit einem geringen Gehalt an monomeren Diisocyanaten
US8431058B2 (en) * 2007-03-19 2013-04-30 Basf Se Polyurethane systems for production of polyurethane sandwich components

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547848A (en) * 1967-11-03 1970-12-15 Armour Ind Chem Co Thixotropic coating compositions comprising a varnish and a di-substituted urea
US4374210A (en) * 1981-09-18 1983-02-15 The Upjohn Company Polyurea-polyurethane from a mixture of a polyol, an aromatic diamine, and an isocyanate-terminated prepolymer
US4383068A (en) * 1972-12-11 1983-05-10 August Merckens Nachfolger Kommanditgesellschaft Thixotropic coating agents based on urea adduct of polyamine and monoisocyanate
US4463126A (en) * 1982-02-03 1984-07-31 Bayer Aktiengesellschaft Coatings prepared from prepolymers and aromatic diamines having at least one alkyl substituent in an ortho position to each amino group

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1769828A1 (de) * 1968-07-20 1971-11-11 Henkel & Cie Gmbh Thixotrope,feuchtigkeitshaertende Polyurethanueberzugsmittel
DE2359929A1 (de) * 1972-12-11 1974-06-12 Merckens Nachf Kg August Thixotropierte waermehaertende polymermassen, insbesondere einbrennlacke
JPS49116867A (de) * 1973-03-09 1974-11-08
DE2928182A1 (de) * 1979-07-12 1981-01-29 Bayer Ag Verfahren zur herstellung von elastischen, gegebenenfalls zellfoermigen, polyurethanharnstoffen
DE3042821A1 (de) * 1980-11-13 1982-06-09 Bayer Ag, 5090 Leverkusen Verfahren zum abdichten von bauwerken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547848A (en) * 1967-11-03 1970-12-15 Armour Ind Chem Co Thixotropic coating compositions comprising a varnish and a di-substituted urea
US4383068A (en) * 1972-12-11 1983-05-10 August Merckens Nachfolger Kommanditgesellschaft Thixotropic coating agents based on urea adduct of polyamine and monoisocyanate
US4374210A (en) * 1981-09-18 1983-02-15 The Upjohn Company Polyurea-polyurethane from a mixture of a polyol, an aromatic diamine, and an isocyanate-terminated prepolymer
US4463126A (en) * 1982-02-03 1984-07-31 Bayer Aktiengesellschaft Coatings prepared from prepolymers and aromatic diamines having at least one alkyl substituent in an ortho position to each amino group

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933416A (en) * 1987-03-11 1990-06-12 Ici Americas Inc Polyisocyanate compositions
US5585061A (en) * 1991-04-25 1996-12-17 Sumitomo Chemical Co., Ltd. Method for producing a multilayer molded article
US5128433A (en) * 1991-06-04 1992-07-07 Polytek Development Corp. Thixotropic polymer compositions and process for use thereof
WO2000039185A1 (en) * 1998-12-23 2000-07-06 Bayer Corporation Thixotropic wood binder compositions
US6287495B1 (en) 1998-12-23 2001-09-11 Bayer Corporation Thixotropic wood binder compositions
US20050222291A1 (en) * 2004-02-04 2005-10-06 Hans-Georg Pirkl Process for the production of very pure 2,4'-methylenediphenyl diisocyanate
US7495124B2 (en) * 2004-02-04 2009-02-24 Bayer Materialscience Ag Process for the production of very pure 2,4′-methylenediphenyl diisocyanate
US20080125529A1 (en) * 2005-06-07 2008-05-29 Construction Research & Technology Gmbh Silane-Modified Urea Derivatives, Method for the Production Thereof, and Use Thereof as Auxiliary Rheological Agents
US8138277B2 (en) 2005-06-07 2012-03-20 Construction Research & Technology Gmbh Silane-modified urea derivatives, method for the production thereof, and use thereof as auxiliary rheological agents
WO2009086064A1 (en) * 2007-12-21 2009-07-09 Henkel Ag & Co. Kgaa Method for preparing a moisture curable hot melt adhesive
US8574394B2 (en) 2007-12-21 2013-11-05 Henkel Ag & Co. Kgaa Method for preparing a moisture curable hot melt adhesive

Also Published As

Publication number Publication date
EP0239870B1 (de) 1989-07-26
CA1269476A (en) 1990-05-22
DE3760364D1 (en) 1989-08-31
JPS62241975A (ja) 1987-10-22
CA1269476C (en) 1990-05-22
EP0239870A3 (en) 1988-07-27
DE3610729A1 (de) 1987-10-01
ATE44963T1 (de) 1989-08-15
EP0239870A2 (de) 1987-10-07

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Owner name: BAYER AKTIENGESELLSCHAFT, LEVERKUSEN, GERMANY A CO

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